Then I guess the bug was that there was no ghosty knight inside the tomb that we could access.
There was only the locked door, and a signpost saying the place was cursed.
We'll try it again to see if the bug reproduces itself the second time around or if it was a one time issue.
Also its reagents as a whole. Tried this with some reagents for spell alterations and I used them up while in another pack. Really small bug but I figured I'd report it. Might come up one day. Some dude steals an epic reagent from another... It's still used by the one who got it stolen lol.